User observations on usage of recommender systems to enable scaling of recommender systems experiments through automated and agentic means

The European Commission, through DG CNECT, is seeking expert services to conduct user observations and surveys that illuminate how individuals interact with recommender systems on Very Large Online Pl******* *** **** ***** ****** ****** ******** *** ********* ** ** ******** ********* ******** **** **** ******* *** *********** ** ******** ************ ******* *** ********* *** ************ *** ************* ** ************** *********** ** **** **** *** *********** *** *** ** ********** ** *** ******* ******** **** ** *********** *** ***** ********* ******* *** ******* ** ************** *********** *** ***** **** ******* * ********** *** ********* *** ********** ** ******** ********* **** *** ***** *********** ** ******** *** ******** **** ** ******** ********* ******* *** ** ***** ************ ************** *********** ***** ***** ************ ******* **** ****** *** ******* **** **** * ************** ***** ** ***** ****** * **** ******** ** ************** ****************** ****** ***** ****** ******* ********* *** ******* ******* ***** **** ** ****** ***** ******* *** ********* *** ******** **** ******* *********** ********* **** ** **** ******* *** ******** ******** ** ****** **** ******** ******* ******* **** ************ *** ********* ******** **** **** ******** *** *** ***** ******** ******** ****** *** *********** ************ ** ********* ******* **************** ******* ******* ********** *********** ***** ******* ********* ****** *** ********* ******** *** ******** ************* *** ************ **** **** ******* ******** ******* *** ******* ******* ****** ***** *** ****** *** ****** **** **** **** ********** **********